Breeding method for fine breeds of litopenaeus vannamei

Abstract

The invention discloses a breeding method for fine breeds of the litopenaeus vannamei. The breeding method comprises the steps: (1), introduction of a basic population; (2), screening of the basic population; (3), intensifying of parent shrimps; (4), building of a family; (5), standardized breeding of young shrimps; (6), independent breeding of the family; (7), family testing; (8), determining of a target family; (9), expanding of propagation; (10), colony breeding of the target family; and (11), breed conservation. Compared with the prior art, the breeding method for the fine breeds of the litopenaeus vannamei has the advantages of being high and stable in yield, resistant to stress and suitable for the high-salinity and low-salinity breeding environment of China.

Description

technical field [0001] The invention relates to the field of breeding of fine varieties of cultured prawns, specifically a method for breeding of fine varieties of Litopenaeus vannamei. Background technique [0002] my country is a big country for Litopenaeus vannamei farming. It has become an important species of shrimp farming in my country since 1999. It has developed rapidly in the three southern provinces and has become the most popular shrimp species in the country with the largest output. With the rapid development of production, there have been serious problems such as uneven quality of seedlings, virus carrying and slow growth, which directly threaten the sustainable development of my country's Litopenaeus vannamei aquaculture industry. Strengthening research on the selection and breeding of prawn farming species, establishing a genetic breeding center, and focusing on cultivating high-quality species with strong stress resistance and adapting to intensive farming a...

AI Technical Summary

Problems solved by technology

Although the large-scale artificial propagation technology of Litopenaeus vannamei has achieved large-scale industrialization, the technology of breeding and breeding of SPF Litopenaeus vannamei seedlings and the technology of SPR Litopenaeus vannamei species breeding are lacking, and some production units even from the United States The introduction of SPF Litopenaeus vannamei broodstock for seed production was also quickly infected, resulting in a rapid decline in quality, and had to be introduced repeatedly, costing a huge amount of foreign exchange